Massachusetts Emergency Management Agency issued the bulletin below on Tuesday's weather event. It appears to concern off-Cape interests more than those here. Use caution if traveling tomorrow.
Wintry Mix Tuesday/Tuesday Night
For areas south of the Mass Pike, a mix of snow, sleet and freezing rain is expected to move in around daybreak Tuesday, quickly changing to rain in the southeast and along the south coast. Pockets of freezing rain may persist closer to the Mass Pike into the afternoon. North of the Mass Pike, snow is expected to develop around daybreak Tuesday, gradually changing to sleet and freezing rain during the afternoon. Precipitation changing to all rain Tuesday evening, with pockets of freezing rain, will continue across the higher terrain. There is also a low risk for some freezing rain across portions of northeast MA Tuesday night.
• Snow: 2 to 4 inches of snow could occur north of the Mass Pike with the highest amounts north of Rt. 2 near the New Hampshire border. A coating to 1 inch of snow south of the Mass Pike.
• Ice: A trace to 0.10" ice accretion across interior MA. Potential for 0.10 to 0.25" across the east slopes of the Berkshires and northern Worcester Hills.
There will be impact to travel at times:
• Some impact to the Tuesday morning commute, especially the later part of the commute.
• A more significant impact is likely for the afternoon and evening commute, mainly north of the Mass Pike.
FORECAST FOR BOSTON AREA (New England Patriots Parade Scheduled for 11 AM)
• The weather impacts for Boston and the Super Bowl Parade are not expected to be to major.
• Between 6 AM and 10 AM, the city may experience a coating to ½ inch of light snow with up to an inch possible in areas northeast toward Rt. 128. The temperature is expected to be in the upper 20s, rising to the lower 30s after 8 AM. Light north northeast wind around 5 mph. There is a risk of freezing rain for the interior southwest suburbs; I-95 and portion of Rt. 128 southwest and west of Boston may become icy.
• Between 10 AM and 1 PM, snow mixes with sleet and then changes to sleet and rain in the afternoon. The temperature is expected to rise into the mid 30s by around 1 PM. Northeast or East Northeast wind 10 to 20 mph. A wintry mix is expected to persist for the interior suburbs towards Rt. 128 and beyond.
• After 1 PM, expect rain in the city. The temperature will remain in mid 30s. East Northeast wind 10 to 20 mph with gusts to 25 mph possible. A wintry mix is expected to continue outside of I-495 and north of the Mass Pike.
Impacts for the City of Boston and Surrounding Areas
• Greater travel impacts just outside of the city Tuesday morning and possibly into early Tuesday afternoon due to a wintry mix.
• Greatest impact could be for suburban areas southwest of Boston (including just outside the city) where there is a risk of precipitation starting as freezing rain and causing very icy conditions on untreated roads.
Winter storm preparedness and safety information is available at: mass.gov/mema/snow
Download the free Massachusetts Alerts app to receive emergency notifications and information from the Massachusetts Emergency Management Agency and the National Weather Service: www.mass.gov/mema/mobileapp.
Graphics via US National Weather Service Boston MA